package com.bjsxt.array;

public class Test01 {
    public static void main(String[] args) {
//        int[] arr1 = null;
        int[] arr1=new int[5];
        System.out.println(arr1[0]);

        for (int i=0; i<arr1.length-1;i++){
            arr1[i]=i*2+1;
        }

        int arr2[]={10,20,30};



    }
}
